| Date | Open | Close | Volume |
| 2010-03-03 | 0.43 | 0.46 | 302000 |
| 2010-03-02 | 0.41 | 0.44 | 403100 |
| 2010-03-01 | 0.40 | 0.39 | 164900 |
| 2010-02-26 | 0.40 | 0.40 | 105600 |
| 2010-02-25 | 0.38 | 0.41 | 115300 |
| 2010-02-24 | 0.38 | 0.39 | 48700 |
| 2010-02-23 | 0.36 | 0.38 | 15900 |
| 2010-02-22 | 0.38 | 0.38 | 86000 |
| 2010-02-19 | 0.40 | 0.38 | 14000 |
| 2010-02-18 | 0.39 | 0.39 | 98300 |
| 2010-02-17 | 0.36 | 0.39 | 157700 |
| 2010-02-16 | 0.37 | 0.37 | 94500 |
| 2010-02-12 | 0.38 | 0.36 | 73700 |
| 2010-02-11 | 0.36 | 0.35 | 57400 |
| 2010-02-10 | 0.35 | 0.35 | 39600 |
| 2010-02-09 | 0.36 | 0.36 | 55000 |
| 2010-02-08 | 0.38 | 0.37 | 67600 |
| 2010-02-05 | 0.36 | 0.38 | 126700 |
| 2010-02-04 | 0.40 | 0.37 | 24700 |
| 2010-02-03 | 0.39 | 0.39 | 42400 |
| 2010-02-02 | 0.40 | 0.38 | 207400 |
| 2010-02-01 | 0.35 | 0.38 | 66000 |
| 2010-01-29 | 0.38 | 0.37 | 111800 |
| 2010-01-28 | 0.40 | 0.38 | 66500 |
| 2010-01-27 | 0.40 | 0.39 | 53000 |
| 2010-01-26 | 0.37 | 0.39 | 72200 |
| 2010-01-25 | 0.35 | 0.35 | 198300 |
| 2010-01-22 | 0.35 | 0.34 | 265800 |
| 2010-01-21 | 0.38 | 0.39 | 101100 |
| 2010-01-20 | 0.38 | 0.38 | 131400 |
| 2010-01-19 | 0.44 | 0.40 | 218300 |
| 2010-01-15 | 0.41 | 0.42 | 177300 |
Other Companies: 03-02-2008 | SurModics Inc. | 02-21-2007
Micrel Inc. | 02-02-2009 | National Semiconductor Corporation